ok, just got back from lunch with my wife, she had one while we were eating, all of a sudden she got real quiet, just starred off into space, i asked her was she having one, she did not respond other than to simple smile, once it was over she described that she felt like a headache was coming on, along with what she describes as fogginess, she felt pressure along her forehead, she said she remembers me asking her if she was having one, but she simply could not respond